Research for Super High Resolution CT using CdTe Detector and X-ray Spectroscopy

在本研究项目中，为了提高空间分辨率，研制了新的成像系统。采用常规高分辨率CT，最佳分辨率为0.5 mm。但人类的腺泡大小约为0.2毫米。我们必须提高空间分辨率才能观察到人腺泡。本项目的第一步是利用常规X射线源和改进型探测器进行超高分辨率CT扫描。这套系统有0.1毫米。空间分辨率。作为本项目的第二步，我们利用同步辐射发展了相衬成像方法。在本研究中，提高了材料的边际。利用这种方法，我们可以清楚地看到肺泡。作为本项目的第三步，我们制作了X射线光谱仪。利用该方法对人体内的锌、钾、S、钙等元素进行了二维成像，提出了利用超高分辨率CT、相衬成像和X射线光谱成像技术可以达到人体成像的新境界。

In this research project, new imaging system is made to improve spatial resolution. Using conventional High Resolution CT, the best resolution is 0.5mm. But the size of human acinus is about 0.2mm. We must improve spatial resolution to observe human acinus. First step in this project, super high resolution CT is made using conventional X-ray source and Improve detector. This system has 0.1mm. spatial resolution. This resolution is useful to observe acinus.As second step in this project, phase contrast imaging method is developed using synchrotron radiation. In this study, margin of materials is enhanced. We can see pulmonary acinus clearly using this method.As third step in this project, X-ray spectrometer is made. Using this method, 2 dimensional Imaging of Zn, K, S and Ca is obtained.In conclusion, it was suggested that we can reach new horizon of human imaging using Super High Resolution CT , Phase Contrast Imaging and X-ray spectroscopic Imaging.